Question

In parallelogram ABCD, angle A=(4x-20)° and angle B=(2x-20)°. find angle C and angle D​

Answer 1

Answer:

In given figure ABCD is a parallelogram.

⇒ We have given that, ∠A=(x+20)

∘

and ∠C=(3x−10)

∘

⇒ We know that opposite angles of parallelogram are equal.

⇒ So, ∠A=∠C

⇒ (x+20)

∘

=(3x−10)

∘

⇒ 2x

∘

=30

∘

∴ x=15

∘